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package it.niedermann.owncloud.notes.branding;
import static it.niedermann.owncloud.notes.NotesApplication.isDarkThemeActive;
import static it.niedermann.owncloud.notes.shared.util.NotesColorUtil.contrastRatioIsSufficient;
import static it.niedermann.owncloud.notes.shared.util.NotesColorUtil.contrastRatioIsSufficientBigAreas;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.graphics.drawable.LayerDrawable;
import android.util.Log;
import android.util.TypedValue;
import android.view.MenuItem;
import android.widget.EditText;
import androidx.annotation.AttrRes;
import androidx.annotation.ColorInt;
import androidx.annotation.IdRes;
import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.graphics.drawable.DrawableCompat;
import androidx.core.util.Pair;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MediatorLiveData;
import androidx.preference.PreferenceManager;
import com.google.android.material.textfield.TextInputLayout;
import it.niedermann.android.sharedpreferences.SharedPreferenceIntLiveData;
import it.niedermann.android.util.ColorUtil;
import it.niedermann.owncloud.notes.NotesApplication;
import it.niedermann.owncloud.notes.R;
import it.niedermann.owncloud.notes.shared.util.NotesColorUtil;
public class BrandingUtil {
private static final String TAG = BrandingUtil.class.getSimpleName();
private static final String pref_key_branding_main = "branding_main";
private static final String pref_key_branding_text = "branding_text";
private BrandingUtil() {
}
public static LiveData<Pair<Integer, Integer>> readBrandColors(@NonNull Context context) {
return new BrandingLiveData(context);
}
private static class BrandingLiveData extends MediatorLiveData<Pair<Integer, Integer>> {
@ColorInt
Integer lastMainColor = null;
@ColorInt
Integer lastTextColor = null;
public BrandingLiveData(@NonNull Context context) {
addSource(readBrandMainColorLiveData(context), (nextMainColor) -> {
lastMainColor = nextMainColor;
if (lastTextColor != null) {
postValue(new Pair<>(lastMainColor, lastTextColor));
}
});
addSource(readBrandTextColorLiveData(context), (nextTextColor) -> {
lastTextColor = nextTextColor;
if (lastMainColor != null) {
postValue(new Pair<>(lastMainColor, lastTextColor));
}
});
}
}
public static LiveData<Integer> readBrandMainColorLiveData(@NonNull Context context) {
final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
Log.v(TAG, "--- Read: shared_preference_theme_main");
return new SharedPreferenceIntLiveData(sharedPreferences, pref_key_branding_main, context.getApplicationContext().getResources().getColor(R.color.defaultBrand));
}
public static LiveData<Integer> readBrandTextColorLiveData(@NonNull Context context) {
final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
Log.v(TAG, "--- Read: shared_preference_theme_text");
return new SharedPreferenceIntLiveData(sharedPreferences, pref_key_branding_text, Color.WHITE);
}
@ColorInt
public static int readBrandMainColor(@NonNull Context context) {
final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
Log.v(TAG, "--- Read: shared_preference_theme_main");
return sharedPreferences.getInt(pref_key_branding_main, context.getApplicationContext().getResources().getColor(R.color.defaultBrand));
}
@ColorInt
public static int readBrandTextColor(@NonNull Context context) {
final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
Log.v(TAG, "--- Read: shared_preference_theme_text");
return sharedPreferences.getInt(pref_key_branding_text, Color.WHITE);
}
public static void saveBrandColors(@NonNull Context context, @ColorInt int mainColor, @ColorInt int textColor) {
final int previousMainColor = readBrandMainColor(context);
final int previousTextColor = readBrandTextColor(context);
final var editor = PreferenceManager.getDefaultSharedPreferences(context).edit();
Log.v(TAG, "--- Write: shared_preference_theme_main" + " | " + mainColor);
Log.v(TAG, "--- Write: shared_preference_theme_text" + " | " + textColor);
editor.putInt(pref_key_branding_main, mainColor);
editor.putInt(pref_key_branding_text, textColor);
editor.apply();
if (context instanceof BrandedActivity) {
if (mainColor != previousMainColor || textColor != previousTextColor) {
final var activity = (BrandedActivity) context;
activity.runOnUiThread(() -> ActivityCompat.recreate(activity));
}
}
}
/**
* Since we may collide with dark theme in this area, we have to make sure that the color is visible depending on the background
*/
@ColorInt
public static int getSecondaryForegroundColorDependingOnTheme(@NonNull Context context, @ColorInt int mainColor) {
final int primaryColor = ContextCompat.getColor(context, R.color.primary);
final boolean isDarkTheme = NotesApplication.isDarkThemeActive(context);
if (isDarkTheme && !contrastRatioIsSufficient(mainColor, primaryColor)) {
Log.v(TAG, "Contrast ratio between brand color " + String.format("#%06X", (0xFFFFFF & mainColor)) + " and dark theme is too low. Falling back to WHITE as brand color.");
return Color.WHITE;
} else if (!isDarkTheme && !contrastRatioIsSufficient(mainColor, primaryColor)) {
Log.v(TAG, "Contrast ratio between brand color " + String.format("#%06X", (0xFFFFFF & mainColor)) + " and light theme is too low. Falling back to BLACK as brand color.");
return Color.BLACK;
} else {
return mainColor;
}
}
public static void applyBrandToEditText(@ColorInt int mainColor, @ColorInt int textColor, @NonNull EditText editText) {
@ColorInt final int finalMainColor = getSecondaryForegroundColorDependingOnTheme(editText.getContext(), mainColor);
DrawableCompat.setTintList(editText.getBackground(), new ColorStateList(
new int[][]{
new int[]{android.R.attr.state_active},
new int[]{android.R.attr.state_activated},
new int[]{android.R.attr.state_focused},
new int[]{android.R.attr.state_pressed},
new int[]{}
},
new int[]{
finalMainColor,
finalMainColor,
finalMainColor,
finalMainColor,
editText.getContext().getResources().getColor(R.color.fg_default_low)
}
));
}
public static void applyBrandToEditTextInputLayout(@ColorInt int color, @NonNull TextInputLayout til) {
final int colorPrimary = ContextCompat.getColor(til.getContext(), R.color.primary);
final int colorAccent = ContextCompat.getColor(til.getContext(), R.color.accent);
final var colorDanger = ColorStateList.valueOf(ContextCompat.getColor(til.getContext(), R.color.danger));
til.setBoxStrokeColor(contrastRatioIsSufficientBigAreas(color, colorPrimary) ? color : colorAccent);
til.setHintTextColor(ColorStateList.valueOf(contrastRatioIsSufficient(color, colorPrimary) ? color : colorAccent));
til.setErrorTextColor(colorDanger);
til.setBoxStrokeErrorColor(colorDanger);
til.setErrorIconTintList(colorDanger);
final var editText = til.getEditText();
if (editText != null) {
editText.setHighlightColor(getTextHighlightBackgroundColor(editText.getContext(), color, colorPrimary, colorAccent));
}
}
public static void tintMenuIcon(@NonNull MenuItem menuItem, @ColorInt int color) {
var drawable = menuItem.getIcon();
if (drawable != null) {
drawable = DrawableCompat.wrap(drawable);
DrawableCompat.setTint(drawable, color);
menuItem.setIcon(drawable);
}
}
public static void applyBrandToLayerDrawable(@NonNull LayerDrawable check, @IdRes int areaToColor, @ColorInt int mainColor) {
final var drawable = check.findDrawableByLayerId(areaToColor);
if (drawable == null) {
Log.e(TAG, "Could not find areaToColor (" + areaToColor + "). Cannot apply brand.");
} else {
DrawableCompat.setTint(drawable, mainColor);
}
}
@ColorInt
public static int getAttribute(@NonNull Context context, @AttrRes int id) {
final var typedValue = new TypedValue();
context.getTheme().resolveAttribute(id, typedValue, true);
return typedValue.data;
}
@ColorInt
public static int getTextHighlightBackgroundColor(@NonNull Context context, @ColorInt int mainColor, @ColorInt int colorPrimary, @ColorInt int colorAccent) {
if (isDarkThemeActive(context)) { // Dark background
if (ColorUtil.INSTANCE.isColorDark(mainColor)) { // Dark brand color
if (NotesColorUtil.contrastRatioIsSufficient(mainColor, colorPrimary)) { // But also dark text
return mainColor;
} else {
return ContextCompat.getColor(context, R.color.defaultTextHighlightBackground);
}
} else { // Light brand color
if (NotesColorUtil.contrastRatioIsSufficient(mainColor, colorAccent)) { // But also dark text
return Color.argb(77, Color.red(mainColor), Color.green(mainColor), Color.blue(mainColor));
} else {
return ContextCompat.getColor(context, R.color.defaultTextHighlightBackground);
}
}
} else { // Light background
if (ColorUtil.INSTANCE.isColorDark(mainColor)) { // Dark brand color
if (NotesColorUtil.contrastRatioIsSufficient(mainColor, colorAccent)) { // But also dark text
return Color.argb(77, Color.red(mainColor), Color.green(mainColor), Color.blue(mainColor));
} else {
return ContextCompat.getColor(context, R.color.defaultTextHighlightBackground);
}
} else { // Light brand color
if (NotesColorUtil.contrastRatioIsSufficient(mainColor, colorPrimary)) { // But also dark text
return mainColor;
} else {
return ContextCompat.getColor(context, R.color.defaultTextHighlightBackground);
}
}
}
}
}
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